In ACN #100 there was a process documented whereby a groove was machined around the base of the cylinders and an O-ring installed insuring a leakproof seal between the cylinders and crankcase. Any thoughts?
I’m co-hosting a NorthWest HHFC Tour June 23-25 2003 for those who can’t make it to the WestTrek. Details will be in the ACN and FSS. Dick ANSWER: S16 project Dick, There are a couple risks involved with the process you describe. First – it requires careful engineering and material choices to be certain that the O-ring has proper crush to seal, yet not so much that it holds up the cylinder base, increasing the risk of base fractures. Base fractures are not all that rare, I’m afraid. Anything that might reduce the clean, flat surface area of the base to crankcase might not be the best idea. The factory used thin copper gaskets under the cylinders. I’m not completely certain why – perhaps to aid heat transfer? I’ve had less that great success with the copper base gaskets, they seem to be difficult to seal. Thin paper, with sealant on both sides has proven to be extremely effective in stopping cylinder base leaks. It’s a good idea to fun a flat file over the base to be sure all nicks and
Related Questions
- In ACN #100 there was a process documented whereby a groove was machined around the base of the cylinders and an O-ring installed insuring a leakproof seal between the cylinders and crankcase. Any thoughts?
- In a base closure situation, what process is used to determine which NAF employees are separated and the order of separation?
- How do the multiple actuators operate when installed on an SW-2 universal base?
